. >> there is a unanimous view here today that we support president obama in announcing. >> and we sure do have your back. >> well, there he was. as he squares off with syrian president assad over the threat of a chemical attack on the syrian rebels. meanwhile, rebels are trying to corner assad inside the capital potentially raising the chances that he could take desperate, drastic action. the washington editor at large for "the atlantic" and is with the new american foundation. david, let me start with you. the question on this red line, have the syrians already crossed it if they're preparing the weapons to deliver the chemical waem weapons? is that the crossing of the line? >> it would seem to be the crossing of the line if you took what the president said in august when he gave an impromptu news conference and i think it was your question that prompted him to say at that time that if they move the weapons or if they used them, it would, i think his word was changed my calculus. >> and it was moved. exactly right. they've moved him. >> they have certainly -- it's not clear they've mo